reset
set term win
cd 'D:\Mars\trunk\output'

set xlabel "x"
set ylabel "y" rotate
#set ylabel "y" rotate
#set xrange [0:1.5708]
#set yrange [0:160000]
     
plot "mapping.dat" using 1:2 lt rgb "black" \
        title "Data"
      
pause -1

set term png enhanced size 800,500 font "arial,14"
set output "mapping.png"
replot
set term win enhanced
replot